Lately my keyboard has been reconnecting randomly now frequently but trying on slower pulling rates slows down the issue but putting it in BIOS mode it works just fine but then no profile switching. Not sure if it still in warranty though (had it since September 2015).

Update: can't use keyboard in motherboards bios makes it have a failed startup or can't go past logo unless I unplug keyboard

Update2: uninstalling CUE and reinstalling while rebooting seemed to fix it but feel like the issue may rise again